Light stick



FIG. 1 is a perspective view of the light stick;

FIG. 2 is a bottom view of the light stick;

FIG. 3 is a top view of the light stick;

FIG. 4 is a front view of the light stick; and,

FIG. 5 is a side view of the light stick, with the opposite side being a mirror image.

The broken line showing of the light portion is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a light stick. 